The Lakeside H-PAC combines the Lakeside Raptor Screening product line with the Lakeside SpiraGrit Vortex Grit Chamber into an elevated pre-engineered headworks system for screening and grit removal in one u nit. As a self-contained system, the H-PAC is supplied in a fabricated stainless steel tank, handles flows as high as 12 mgd and can be installed above or below ground. Its compact design uses less space and costs less than other packaged screen/aerated grit chamber systems.

Lakeside offers innovative screening solutions and proven technology to serve various applications, serving small and large treatment plants, exceeding expectations of operators and engineers worldwide. All Raptor screens efficiently screen, wash and compact in one unit, which reduces the volume and weight up to a dry solids content of 40 percent, further reducing disposal costs. 

The SpiraGrit Vortex Grit System effectively removes inorganic grit from treatment plant influent in a mechanically induced vortex environment. Rotating paddles maintain the flow velocity in the chamber, keeping organics in suspension while allowing heavier grit to settle in the upper chamber floor. Settled grit is then moved across the stationary floor plate, towards the center opening and into the lower grit hopper. An airlift recessed impeller or self-priming pump system removes grit.

Also available for screenings removal with the H-PAC system is the Hydronic T Screening System, with cost savings at higher flow rates. This system is a hydraulically operated telescoping boom and rake mechanism for cleaning bar racks. Additionally, the Raptor Wash Press can be used for complete screenings washing and compaction, reducing volume by more than 50 percent and weight by more than 67 percent.

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